comparison Renderer/test_render/polygon.cpp @ 283:15bfacccde99 draft

fix test_render
author e065746@localhost.localdomain
date Fri, 05 Jun 2009 16:49:12 +0900
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282:ef6b225f6f40 283:15bfacccde99
1 #include <iostream>
2 #include <SDL.h>
3 #include <SDL_opengl.h>
4 #include <SDL_image.h>
5 #include "polygon.h"
6 #include "xml.h"
7 #include "sys.h"
8 #include "triangle.h"
9 #include "vertex.h"
10 #include "Span.h"
11 #include "SpanC.h"
12 #include "scene_graph_pack.h"
13 #include "error.h"
14 #include "viewer_types.h"
15 using namespace std;
16
17 //extern int decode(char *cont, char *file_name);
18 extern int decode(char *cont, FILE *outfile);
19
20
21 SDL_Surface* Polygon::texture_image;
22
23 Polygon::Polygon(void)
24 {
25 xyz[0] = 0;
26 xyz[1] = 0;
27 xyz[2] = 0;
28 xyz[3] = 1;
29 c_xyz[0] = 0;
30 c_xyz[1] = 0;
31 c_xyz[2] = 0;
32 c_xyz[3] = 1;
33 angle[0] = 0;
34 angle[1] = 0;
35 angle[2] = 0;
36 angle[3] = 1;
37
38 for (int i = 0; i < 16; i++) {
39 matrix[i] = 0;
40 }
41 }
42
43 void
44 Polygon::position_init(void)
45 {
46 xyz[0] = 0;
47 xyz[1] = 0;
48 xyz[2] = 0;
49 xyz[3] = 1;
50 c_xyz[0] = 0;
51 c_xyz[1] = 0;
52 c_xyz[2] = 0;
53 c_xyz[3] = 1;
54 angle[0] = 0;
55 angle[1] = 0;
56 angle[2] = 0;
57 angle[3] = 1;
58
59 for (int i = 0; i < 16; i++) {
60 matrix[i] = 0;
61 }
62 }
63
64 #if 0
65 void Polygon::draw(SceneGraphPack *sgp)
66 {
67 float xyz1[4],xyz2[4],xyz3[4];
68
69 /***SceneGraphUpdate***/
70 //sgp_update();
71 for (int i = 0; i < sgp->info.size; i++) {
72 SceneGraphNode node = sgp->node[i];
73
74 /***draw***/
75 int n,nt;
76 for(n=0,nt=0; n<node.size*3; n+=9,nt+=6) {
77 xyz1[0] = node.vertex[n];
78 xyz1[1] = node.vertex[n+1];
79 xyz1[2] = node.vertex[n+2]*-1;
80 xyz1[3] = 1;
81 xyz2[0] = node.vertex[n+3];
82 xyz2[1] = node.vertex[n+3+1];
83 xyz2[2] = node.vertex[n+3+2]*-1;
84 xyz2[3] = 1;
85 xyz3[0] = node.vertex[n+6];
86 xyz3[1] = node.vertex[n+6+1];
87 xyz3[2] = node.vertex[n+6+2]*-1;
88 xyz3[3] = 1;
89
90 rotate(xyz1, node.translation);
91 rotate(xyz2, node.translation);
92 rotate(xyz3, node.translation);
93
94 Vertex *ver1 = new Vertex(xyz1[0],xyz1[1],xyz1[2],node.texture[nt],node.texture[nt+1]);
95 Vertex *ver2 = new Vertex(xyz2[0],xyz2[1],xyz2[2],node.texture[nt+2],node.texture[nt+2+1]);
96 Vertex *ver3 = new Vertex(xyz3[0],xyz3[1],xyz3[2],node.texture[nt+4],node.texture[nt+4+1]);
97
98 Triangle *tri = new Triangle(ver1,ver2,ver3);
99 Span_c *span = new Span_c();
100 span->viewer = viewer;
101 span->p = this;
102 span->create_span(tri,texture_image);
103 delete ver1;
104 delete ver2;
105 delete ver3;
106 delete tri;
107 delete span;
108 }
109 }
110 }
111
112
113 void Polygon::draw(PolygonPack *pp)
114 {
115 for(int n=0; n<pp->info.size; n++)
116 {
117 Vertex *ver1 = new Vertex(pp->tri[n].ver1.x,pp->tri[n].ver1.y,pp->tri[n].ver1.z,pp->tri[n].ver1.tex_x,pp->tri[n].ver1.tex_y);
118 Vertex *ver2 = new Vertex(pp->tri[n].ver2.x,pp->tri[n].ver2.y,pp->tri[n].ver2.z,pp->tri[n].ver2.tex_x,pp->tri[n].ver2.tex_y);
119 Vertex *ver3 = new Vertex(pp->tri[n].ver3.x,pp->tri[n].ver3.y,pp->tri[n].ver3.z,pp->tri[n].ver3.tex_x,pp->tri[n].ver3.tex_y);
120
121 Triangle *tri = new Triangle(ver1,ver2,ver3);
122 Span_c *span = new Span_c();
123 span->viewer = viewer;
124 span->p = this;
125 span->create_span(tri,texture_image);
126 delete ver1;
127 delete ver2;
128 delete ver3;
129 delete tri;
130 delete span;
131 }
132 }
133
134 void Polygon::draw(SpanPack *sp)
135 {
136 Span *span;
137
138 for (int n = 0; n < sp->info.size; n++) {
139 span = &sp->span[n];
140
141 //int x = span->x;
142 //int y = span->y;
143 float z = span->start_z;
144 int end = span->length_x;
145 float zpos = span->end_z;
146 float tex1 = span->tex_x1;
147 float tex2 = span->tex_x2;
148 float tey1 = span->tex_y1;
149 float tey2 = span->tex_y2;
150 Uint32 rgb;
151 int tex_xpos;
152 int tex_ypos;
153 int tex_zpos;
154 float tex_x, tex_y, tex_z;
155
156 if (end == 1) {
157 tex_xpos = (int)((span->tex_height-1) * tex1);
158 tex_ypos = (int)((span->tex_width-1) * tey1);
159 tex_zpos = (int)z;
160 rgb = get_rgb(tex_xpos, tex_ypos);
161 //viewer->write_pixel(x, y, zpos, rgb);
162 } else {
163 for (int j = 0; j < end; j++) {
164 tex_x = tex1*(end-1-j)/(end-1) + tex2*j/(end-1);
165 tex_y = tey1*(end-1-j)/(end-1) + tey2*j/(end-1);
166 tex_z = z*(end-1-j)/(end-1) + zpos*j/(end-1);
167 if (tex_x > 1) tex_x = 1;
168 if (tex_y > 1) tex_y = 1;
169 tex_xpos = (int)((span->tex_height-1) * tex_x);
170 tex_ypos = (int)((span->tex_width-1) * tex_y);
171 rgb = get_rgb(tex_xpos,tex_ypos);
172 //viewer->write_pixel(j + x, y, tex_z, rgb);
173 }
174 }
175 }
176 }
177
178 #endif
179
180 void Polygon::pickup_coordinate(char *cont)
181 {
182 for(int n=0; n<size*3; n+=3)
183 {
184 cont = pickup_float(cont, coord_xyz+n);
185 cont = pickup_float(cont, coord_xyz+n+1);
186 cont = pickup_float(cont, coord_xyz+n+2);
187
188 if (cont == NULL)
189 {
190 cout << "Analyzing obj data failed coordinate\n";
191 }
192 }
193 }
194
195 void Polygon::pickup_normal(char *cont)
196 {
197 for (int n = 0; n<size*3; n += 3)
198 {
199 cont = pickup_float(cont, normal+n);
200 cont = pickup_float(cont, normal+n+1);
201 cont = pickup_float(cont, normal+n+2);
202
203 if (cont == NULL)
204 {
205 cout << "Analyzing obj data failed normal\n";
206 }
207 }
208 }
209
210 void Polygon::pickup_model(char *cont)
211 {
212 cont = pickup_float(cont,c_xyz);
213 cont = pickup_float(cont,c_xyz+1);
214 cont = pickup_float(cont,c_xyz+2);
215
216 if (cont == NULL)
217 {
218 cout << "Analyzing obj data failed model\n";
219 }
220 }
221
222 void Polygon::pickup_texture(char *cont)
223 {
224 for (int n = 0; n < size*3; n += 3)
225 {
226 cont = pickup_float(cont, coord_tex+n);
227 cont = pickup_float(cont, coord_tex+n+1);
228 coord_tex[n+2] = 1.0;
229
230 if (cont == NULL)
231 {
232 cout << "Analyzing obj data failed texture\n";
233 }
234 }
235 }
236
237 char *get_pixel(int tx, int ty, SDL_Surface *texture_image)
238 {
239 return (char*)texture_image->pixels+(texture_image->format->BytesPerPixel*((texture_image->w)*ty+tx));
240 }
241
242 unsigned my_ntohl(unsigned u) {
243 // rr gg bb 00
244 // rr
245 // bb gg rr
246 //unsigned u1 = ((u&0xff)<<24) +
247 // ((u&0xff00)<<8) +
248 // ((u&0xff0000)>>8) +
249 // ((u&0xff000000)>>24);
250 unsigned u1;
251 unsigned b = (u&0xff000000)>>24;
252 unsigned g = (u&0xff0000)>>16;
253 unsigned r = (u&0xff00)>>8;
254 u1 = r + (g<<8) + (b<<16);
255 //printf("pixel %x->%x\n",u,u1);
256 return u1;
257 }
258
259 Uint32 Polygon::get_rgb(int tx, int ty)
260 {
261 SDL_PixelFormat *fmt;
262 //Uint32 temp, pixel;
263 Uint8 red, green, blue;
264
265 fmt = texture_image->format;
266
267 if (tx<0) tx = 0;
268 if (texture_image->w-1< tx) tx = texture_image->w-1 ;
269 if (ty<0) ty = 0;
270 if (texture_image->h-1< ty) ty = texture_image->h-1 ;
271
272
273
274 //SDL_LockSurface(texture_image);
275 char *p = get_pixel(tx,ty,texture_image);
276 #if 0
277 pixel = my_ntohl(*(Uint32*)p);
278 //printf("pixel = %d\n", pixel);
279 //printf("pixel %x bpp = %d ",p, fmt->BytesPerPixel);
280 //SDL_UnlockSurface(texture_image);
281
282 temp = pixel&fmt->Rmask;
283 temp = temp>>fmt->Rshift;
284 temp = temp<<fmt->Rloss;
285 red = (Uint8)temp;
286
287 temp = pixel&fmt->Gmask;
288 temp = temp>>fmt->Gshift;
289 temp = temp<<fmt->Gloss;
290 green = (Uint8)temp;
291
292 temp = pixel&fmt->Bmask;
293 temp = temp>>fmt->Bshift;
294 temp = temp<<fmt->Bloss;
295 blue = (Uint8)temp;
296 #endif
297 blue = (Uint8) p[0];
298 green = (Uint8) p[1];
299 red = (Uint8) p[2];
300
301 //printf("tx = %d ty = %d ", tx,ty);
302 //printf("pixel color => R: %d, G: %d, B: %d\n", red, green, blue);
303
304 SDL_PixelFormat *pf = NULL;
305 //pf = viewer->screen->format;
306
307 //cout << SDL_MapRGB(pf, red, green, blue) << endl;
308 return SDL_MapRGB(pf, red, green, blue);
309 }